All of Lassie's pups have been given away except for Laddie, the runt, and she hides him in an abandoned mineshaft to keep him with her.
When Jeff and Porky see pit bull terriers, Gramps suspects illegal dogfights are being held in the area.
Guest Stars:
Joey D. Vieira, John Pickard
Jeff and Lassie find a litter of abandoned kittens and are horrified when Gramps says to leave them alone; that they can't be saved and will probably starve.
Guest Stars:
Madge Blake, Arthur Space
Porky enters Lassie in the Capitol City Dog Show obedience trials without knowing what the procedure is, but Jeff finds out what's involved and trains her.
Guest Stars:
Joey D. Vieira, Don Beddoe, Trevor Bardette
A new teacher has forbidden the children from bringing dogs into the classroom and one of Jeff's classmates is determined to do something about it.
Guest Stars:
Phyllis Coates, Judy Nugent
Jeff teaches Lassie to howl when he plays the violin, hoping to get out of lessons, but Ellen sees through the scheme
Guest Stars:
Lucien Littlefield, Earle Hodgins
There is a weird ""monster"" in the lake making unearthly noises--but it turns out to be a displaced seal, which Jeff promptly tries to adopt.
Lassie comes down with an odd ailment. The kids are convinced that a creepy old lady they call the "witch woman" has cast a spell on the dog.
Guest Stars:
Joey D. Vieira
Jeff nurses a wild duck back to health but when he releases it back to the wild, he fears the duck may be the victim of poachers in the area.
Guest Stars:
Arthur Space
Jeff and Gramps are jealous when Clay Horton takes Ellen out on a date.
Guest Stars:
Ken Osmond
The boys start printing a newspaper to make themselves some pocket money--but the material they print gets them into hot water instead.
Guest Stars:
Leonard Penn, Harry Harvey
After an itinerant clown and his dog entertain at a church carnival, the man is accused of robbing a neighbor.
Jeff and Ellen plan a surprise party for Gramps so well that Gramps feels neglected on his birthday and ""runs away.""
Guest Stars:
Joey D. Vieira
A gypsy girl and her family camp on the Miller farm, despite neighbors' reports of thievery.
A television set meant for the Brockways is delivered to the Millers.
Guest Stars:
Paul Wexler
In a quest for a valuable stamp, the boys begin quarreling with each other.
Guest Stars:
Joey D. Vieira, William Challee
When Lassie is impounded in Capitol City for lack of tag and leash, Jeff learns that most of the dogs in the pound are to be killed so he brings, much to the consternation of Ellen, the dogs to the farm so he can find them homes.
Matt Brockway says Pokey is useless and tells Porky he is going to give the dog away.
Guest Stars:
Joey D. Vieira
When Gramps refuses to sell the farm to nasty Emmet Carey, Edgar Carey pretends that a barbed wire scratch he got in the barn is Lassie's bite, figuring the Millers will give up the farm before giving up Lassie
Guest Stars:
John Harmon, Will Wright, Everett Glass
Jeff and Porky horrify Gramps by trying to tame a red-tailed hawk as a hunting falcon.
Guest Stars:
Joey D. Vieira
The boys quarrel over Pokey being able to sleep in their new tree house.
Guest Stars:
Joey D. Vieira
The Millers welcome a Japanese exchange student--and run into bigotry from a neighbor who has never gotten over World War II.
The boys' journey on their new raft is hampered by the fact that Porky can't swim.
Guest Stars:
Joey D. Vieira
When Gramps and Ellen tell him that Lassie is going blind, Jeff takes the dog on a long journey to find the doctor that can restore her sight.
Guest Stars:
Arthur Space, Paul Cavanagh
Jeff decides he wants to be a veterinarian, and his first patient is the Miller cow.
Guest Stars:
Arthur Space
Ellen accidentally brings home a valuable champion collie from a dog show rather than Lassie--and is accused of theft!
Guest Stars:
Marjorie Bennett, Milton Frome
Jeff and Porky, told to babysit little Janie, leave the child with Lassie while they run to see construction equipment at work, not knowing Janie is following them.
Guest Stars:
Joey D. Vieira
After a friend's mother is involved in a serious car accident, Jeff becomes over protective of Lassie.
Jeff, in charge of collecting money for Sunday School, loses the contributions and has no way of replacing them.
Jeff discovers that a new classmate's father is jacklighting deer.
Guest Stars:
Robert J. Wilke
A disreputable horse dealer schemes to buy Jeff's colt cheaply by proving to Gramps that the horse is vicious.
Guest Stars:
Francis McDonald
One of Lassie's puppies, Comet, mistreated by its owner, has turned wild.
Guest Stars:
Strother Martin, Arthur Space
Jeff and Porky enter the world of business when they take a 4-H calf home from the county's fair, intent on raising it to sell for the price of an outboard motor. In their care, the calf grows into a prize-winning heifer.
Gramps' blames Lassie's son Laddie's illness on the spray used by a local crop duster.
Guest Stars:
Ross Elliott
Jeff persuades a neighbor to buy a rehabilitated war dog, only to have the dog exhibit aggressive behavior. Joe Brown: James Griffith.
Guest Stars:
James Griffith
Ellen battles with Jeff to go get a haircut--until the unexpected happens.
Jeff and Porky quarrel over a new girl in town, who is happily playing one boy off another!
Guest Stars:
Joey D. Vieira, Marjorie Bennett, Aline Towne

36 Episodes